NCU04937

UniProt ID: Q7S3T0
Organism: Neurospora crassa OR74A
Review Status: COMPLETE
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Gene Description

NCU04937 is a predicted 114-residue protein of Neurospora crassa that has not been characterised experimentally. About half of the sequence is a single run of 50 glutamines (residues 55-104). The rest is a short N-terminal segment, part of it predicted to be disordered, and a 10-residue C-terminal tail. A coiled-coil segment is predicted over the glutamine-rich region. The protein has no conserved domain. Its only family assignment is a weak PANTHER match that falls within the polyglutamine run. Sequence searches find no homolog in other Neurospora species or in other fungi. The 3' end of the gene model has been revised: an earlier version encoded 124 residues with a different C-terminal tail. The molecular function, cellular location and biological role of the protein are unknown.

References

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Suggested Questions for Experts

Q: Is NCU04937 a real protein-coding gene? The ORF has no detectable homolog even in other Neurospora species, has no conserved domain, and its 3' gene model has changed between releases. Could the locus be a lineage-specific or spurious ORF built around a CAG/CAA microsatellite?

Suggested Experiments

Experiment: Map the NCU04937 transcript ends by RNA-seq read inspection and RACE, and check ribosome-profiling and proteomics data for evidence of translation. If the gene is expressed, tag it at its native locus and examine where the protein localises and what happens when it is deleted.

Hypothesis: NCU04937 is transcribed and translated as the annotated 114-residue product.

Type: transcript and protein evidence for the gene model

External Prediction Reviews

These computational predictions are reviewed separately from the GOA annotation set used for this review. The assessments below are from this project and do not constitute official GO annotations or endorsement by GO/UniProt. They are not included in the existing annotation review above.

ProtNLM2 External predictions

View prediction review YAML · NCU04937-protnlm-predictions-review.yaml · Review status: COMPLETE

DNA binding is uncertain for this uncharacterised orphan ORF, whose sequence is dominated by a 50-residue polyglutamine run and which carries no DNA-binding domain.

Source documents: genes/NEUCR/NCU04937/NCU04937-protnlm-source.json · genes/NEUCR/NCU04937/NCU04937-uniprot.txt

Review score: 2 = concordant with evidence; 1 = uncertain; 0 = discordant with evidence. This is an assessment score, not a model probability.

GO:0003677 DNA binding GO_MF
UNC — Uncertain Review score: 1/2
Prediction method: ProtNLM2 · Version: UniProt API snapshot 2026-09-09 · file:NEUCR/NCU04937/NCU04937-protnlm-source.json
Review rationale: NCU04937 is an uncharacterised 114-residue orphan ORF in which a single run of 50 glutamines (residues 55-104) makes up about half the sequence, under a predicted coiled coil. It has no conserved domain; its only family signature, a weak PANTHER PTHR13270:SF14 match, lies over the polyglutamine run and reflects low-complexity sequence rather than a shared domain. The prediction cites human THAP11 (Q96EK4; phmmer score 29.1), whose DNA binding resides in its THAP zinc-finger domain, which NCU04937 lacks; shared glutamine-rich content does not transfer that function. The gene has no GOA annotations, no ortholog was detected in other Neurospora species, and a PubMed search for NCU04937 returned no publications. Nothing supports or refutes DNA binding, so the prediction is uncertain.
Supporting Evidence:

Deep Research

Manual

(NCU04937-deep-research-manual.md)

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📚 Additional Documentation

Notes

(NCU04937-notes.md)

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Protnlm Location Review

(NCU04937-protnlm-location-review.md)

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📄 View Raw YAML

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